If A can complete a work in 6 hours, and B can complete it in
8 hours, then how much time would they take to complete the
work together?

Answer Posted / reesdar

A's 1 hour's work=1/6
B's 1 hour's work=1/8
(A+B)'s 1 hour's work=(1/6+1/8)=7/24
Both A and B will finish the work in 24/7=3 3/7 days

Is This Answer Correct ?    22 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

if f(x)=1/x**2 , then f(f(f(x)))

782


With a 4/5 full tank a vehicle can travel 12 miles, how far can it travel with a 1/3 full tank

1260


If x,y,z are chosen frm -3,1/2,2 what is the largest value of (x/y)*z*z

714


There are two trees in a lawn. One grows at a rate 3/5 of the other in 4 years. If the total growth of trees What is the height of the smaller tree after 2 years

761


Why do we buy you?

1253






A, B ans C are three speakers. They have to speak randomly along with another 5 speakers in a function. A has to speak before B and B has to speak before C. What is the probability.

679


Find the missing number in this series? 8 2 14 6 11 ? 14 6 18 12

847


Five trays cost is 0.35 each and dozen-----

1379


Three years ago my uncle offered me a used keyboard for Rs. 1024. A year later he offered me the same for Rs. 640 and last year he wanted Rs. 400 and now he is willing to sell it to me for Rs. 250. But I have decided to buy it when he reduces the price next time. If he is constantly reducing its price, at what price will he offer the keyboard to me next?

712


Certain no. of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally.

772


Himesh works thrice as much as Bhavin. Find the number of days it would take to complete the work if both work together if Himesh takes 60 days less than Bhavin to do a work.

711


in a school for a student out of a 100 he got 74 of average for 7 subjects and he got 79 marks in 8th subject. What is the average of all the subjects?

753


Conversation between two mathematicians: first : I have three children. The product of their ages is 36 .. If you sum their ages . it is exactly same as my neighbour's door number on my left. The second mathematician verifies the door number and says that the not sufficient . Then the first says " o.k one more clue is that my youngest is the youngest" Immediately the second mathematician answers . Can you answer the question asked by the first mathematician? What are the children ages?

1665


In an exam, a girl scores 85% in one subject and 88 % in another subject. What percentage does she score in the third subject to get an average of 88% marks?

663


How can 1000000000 be written as a product of two factors neither of them containing zeros

810